Re: [CMake] How to get a list of all the static libraries that a target will link against ?
I think I have found a way to work round this. Instead of trying to get a
list of all the static libraries that a target will link against I will
modify the various libraries so that they add their library dependencies
like this:
target_link_libraries(mtx_wrapper PUBLIC
$$STREQUAL:$TARGET_PROPERTY:TYPE,SHARED_LIBRARY:-Wl,-whole-archive
${MTXSIM_LIBRARIES}
$$STREQUAL:$TARGET_PROPERTY:TYPE,SHARED_LIBRARY:-Wl,-no-whole-archive
$$STREQUAL:$CXX_COMPILER_ID,GNU:dl
$$STREQUAL:$CXX_COMPILER_ID,Clang:dl
This should mean that all the dependent libraries get wrapped inside
-whole-archive/-no-whole-archive pairs when the target being linked is a
shared library. And if the target being linked is an executable then the
-whole-archive/-no-whole-archive options should automatically be omitted.
Initial tests indicate that this approach will work but I have encountered
a bug which slightly complicates the issue:
http://www.cmake.org/Bug/view.php?id=15034
Essentially, the -no-whole-archive option sometimes gets omitted unless
prefixed by some other command.
--
Glenn
On 21 July 2014 19:24, Angeliki Chrysochou angeliki.chrysoc...@gmail.com
wrote:
Well try it and see if it works. If you set this variable in a specific
CMakeLists file, it will affect the specific add_library (or
add_executable) that is in that CMakeLists file. With this way you can
control which libraries/executables will be linked with these flags, and
this is the level of control you have.
Cheers!
Angeliki
On Mon, Jul 21, 2014 at 7:05 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
The problem is that I need to add both -whole-archive and
-no-whole-archive options. And I need to control exactly where they occur
so that only my libraries occur inside the whole archive section. I'd be
happy to be proven wrong but I don't think setting CMAKE_EXE_LINKER_FLAGS
will give me that level of control.
--
Glenn
On 21 July 2014 09:57, Angeliki Chrysochou angeliki.chrysoc...@gmail.com
wrote:
Hi Glenn,
Adding linker flags exactly in target_link_libraries is not a very good
practice in my opinion. To add specific linker flags to an executable, you
can use the variable CMAKE_EXE_LINKER_FLAGS, which you can edit before
calling add_executable. You could set this variable accordingly in your
static and dynamic CMakeLists.txt to include the flags you wish in the
following way:
set(CMAKE_EXE_LINKER_FLAGS -whole-archive)
If you set this variable to include more custom linker flags which you
want to preserve across libraries, then you should set it in the following
way to preserve its old value:
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} -whole-archive)
If you want to edit linker flags for a shared library or a module target
you can use these cmake variables (set them before add_library):
CMAKE_SHARED_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
Be aware that variables have CMakeLists.txt file scope, so if you set
different values in one CMakeLists.txt then they might get overwritten or
appended (depending on the way you edit the variable).
All the best,
Angeliki
On Sat, Jul 19, 2014 at 2:39 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
Don't all shout at once :-) I'm guessing there are no easy solutions
then...
--
Glenn
On 28 June 2014 14:33, Glenn Coombs glenn.coo...@gmail.com wrote:
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o
for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various
project specific library folders which each build a static library. The
testbench folder is the one that builds both the executable and the
dynamic
library. When building the dynamic library I need to use the linker
options -whole-archive and -no-whole-archive to force my static project
libraries to be included into the dynamic library. The problem is how to
insert the -whole-archive and -no-whole-archive options so that they
select
the correct set of libraries. Currently in the testbench CMakeLists.txt
file I have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench
Re: [CMake] How to get a list of all the static libraries that a target will link against ?
Hi Glenn,
Adding linker flags exactly in target_link_libraries is not a very good
practice in my opinion. To add specific linker flags to an executable, you
can use the variable CMAKE_EXE_LINKER_FLAGS, which you can edit before
calling add_executable. You could set this variable accordingly in your
static and dynamic CMakeLists.txt to include the flags you wish in the
following way:
set(CMAKE_EXE_LINKER_FLAGS -whole-archive)
If you set this variable to include more custom linker flags which you want
to preserve across libraries, then you should set it in the following way
to preserve its old value:
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} -whole-archive)
If you want to edit linker flags for a shared library or a module target
you can use these cmake variables (set them before add_library):
CMAKE_SHARED_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
Be aware that variables have CMakeLists.txt file scope, so if you set
different values in one CMakeLists.txt then they might get overwritten or
appended (depending on the way you edit the variable).
All the best,
Angeliki
On Sat, Jul 19, 2014 at 2:39 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
Don't all shout at once :-) I'm guessing there are no easy solutions
then...
--
Glenn
On 28 June 2014 14:33, Glenn Coombs glenn.coo...@gmail.com wrote:
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various
project specific library folders which each build a static library. The
testbench folder is the one that builds both the executable and the dynamic
library. When building the dynamic library I need to use the linker
options -whole-archive and -no-whole-archive to force my static project
libraries to be included into the dynamic library. The problem is how to
insert the -whole-archive and -no-whole-archive options so that they select
the correct set of libraries. Currently in the testbench CMakeLists.txt
file I have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench ${sources} ${headers} )
target_link_libraries(csim_dll ${libs_dll} ${PTHREADS_LIBRARIES} )
target_link_libraries(testbench ${libs} ${PTHREADS_LIBRARIES} )
which produces the following link line:
/usr/bin/g++-4.7 -fPIC -m32 -m32 -m32 -fPIC -m32 -O3 -O3 -DHIDEBUG
-Wl,-Bsymbolic
-shared -Wl,-soname,libtopazhp.so
-o libtopazhp.so
CMakeFiles/csim_dll.dir/dll_main.cpp.o
CMakeFiles/csim_dll.dir/main_common.cpp.o
-lm -lrt -lm -lrt
-Wl,-whole-archive
../mvea/VLC/libVLC.a
../mvea/libmvea.a
../systemCSupport/libsystemc_support.a
../devif_slave/libDevifSlave.a
../systemC/libsystemc.a
../sim_utils/libsim_utils.a
../hwdebug/libhwDebug.a
../mtx_wrapper/libmtx_wrapper.a
../transif/libtransif_slave.a
-Wl,-no-whole-archive
-lpthread -lz
../systemC/libpthreads_dummy.a
../external_mtx/src/external_mtx-build/metag/libmetag.a
../external_mtx/src/external_mtx-build/metagcopro/libmetagcopro.a
../external_mtx/src/external_mtx-build/metac/vmetastub/libvmetastub.a
../external_mtx/src/external_mtx-build/metac/insim/libinsimfpu.a
../external_mtx/src/external_mtx-build/mtx/insim-mtxg/libinsim-mtxg.a
../external_mtx/src/external_mtx-build/mtx/libmtxc.a
-ldl -lm -lrt -lm -lrt
The problem is that the 6 external_mtx libraries should have been
included inside the -whole-archive section. These libraries are specified
in the mtx_wrapper folder with a target_link_libraries(mtx_wrapper
${METASIM_LIBRARIES}) command. I have managed to wrap the direct library
dependencies inside the -whole-archive but I need to ensure that any
sub-dependencies are included as well (and any dependencies they might have
recursively). Any system dynamic libaries (-ldl -lm -lrt etc.) must appear
after the -no-whole-archive option otherwise the link fails. The
mtx_wrapper library can be built in two ways and only one of them will add
the extra METASIM libraries as a dependency, the other way fakes that code
internally. Adding the METASIM libraries via target_link_libraries()
inside the mtx_wrapper CMakeLists.txt
Re: [CMake] How to get a list of all the static libraries that a target will link against ?
The problem is that I need to add both -whole-archive and -no-whole-archive
options. And I need to control exactly where they occur so that only my
libraries occur inside the whole archive section. I'd be happy to be
proven wrong but I don't think setting CMAKE_EXE_LINKER_FLAGS will give me
that level of control.
--
Glenn
On 21 July 2014 09:57, Angeliki Chrysochou angeliki.chrysoc...@gmail.com
wrote:
Hi Glenn,
Adding linker flags exactly in target_link_libraries is not a very good
practice in my opinion. To add specific linker flags to an executable, you
can use the variable CMAKE_EXE_LINKER_FLAGS, which you can edit before
calling add_executable. You could set this variable accordingly in your
static and dynamic CMakeLists.txt to include the flags you wish in the
following way:
set(CMAKE_EXE_LINKER_FLAGS -whole-archive)
If you set this variable to include more custom linker flags which you
want to preserve across libraries, then you should set it in the following
way to preserve its old value:
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} -whole-archive)
If you want to edit linker flags for a shared library or a module target
you can use these cmake variables (set them before add_library):
CMAKE_SHARED_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
Be aware that variables have CMakeLists.txt file scope, so if you set
different values in one CMakeLists.txt then they might get overwritten or
appended (depending on the way you edit the variable).
All the best,
Angeliki
On Sat, Jul 19, 2014 at 2:39 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
Don't all shout at once :-) I'm guessing there are no easy solutions
then...
--
Glenn
On 28 June 2014 14:33, Glenn Coombs glenn.coo...@gmail.com wrote:
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various
project specific library folders which each build a static library. The
testbench folder is the one that builds both the executable and the dynamic
library. When building the dynamic library I need to use the linker
options -whole-archive and -no-whole-archive to force my static project
libraries to be included into the dynamic library. The problem is how to
insert the -whole-archive and -no-whole-archive options so that they select
the correct set of libraries. Currently in the testbench CMakeLists.txt
file I have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench ${sources} ${headers} )
target_link_libraries(csim_dll ${libs_dll} ${PTHREADS_LIBRARIES} )
target_link_libraries(testbench ${libs} ${PTHREADS_LIBRARIES} )
which produces the following link line:
/usr/bin/g++-4.7 -fPIC -m32 -m32 -m32 -fPIC -m32 -O3 -O3 -DHIDEBUG
-Wl,-Bsymbolic
-shared -Wl,-soname,libtopazhp.so
-o libtopazhp.so
CMakeFiles/csim_dll.dir/dll_main.cpp.o
CMakeFiles/csim_dll.dir/main_common.cpp.o
-lm -lrt -lm -lrt
-Wl,-whole-archive
../mvea/VLC/libVLC.a
../mvea/libmvea.a
../systemCSupport/libsystemc_support.a
../devif_slave/libDevifSlave.a
../systemC/libsystemc.a
../sim_utils/libsim_utils.a
../hwdebug/libhwDebug.a
../mtx_wrapper/libmtx_wrapper.a
../transif/libtransif_slave.a
-Wl,-no-whole-archive
-lpthread -lz
../systemC/libpthreads_dummy.a
../external_mtx/src/external_mtx-build/metag/libmetag.a
../external_mtx/src/external_mtx-build/metagcopro/libmetagcopro.a
../external_mtx/src/external_mtx-build/metac/vmetastub/libvmetastub.a
../external_mtx/src/external_mtx-build/metac/insim/libinsimfpu.a
../external_mtx/src/external_mtx-build/mtx/insim-mtxg/libinsim-mtxg.a
../external_mtx/src/external_mtx-build/mtx/libmtxc.a
-ldl -lm -lrt -lm -lrt
The problem is that the 6 external_mtx libraries should have been
included inside the -whole-archive section. These libraries are specified
in the mtx_wrapper folder with a target_link_libraries(mtx_wrapper
${METASIM_LIBRARIES}) command. I have managed to wrap the direct library
dependencies inside the -whole-archive but I need to ensure that any
sub-dependencies are included as well (and any
Re: [CMake] How to get a list of all the static libraries that a target will link against ?
Well try it and see if it works. If you set this variable in a specific
CMakeLists file, it will affect the specific add_library (or
add_executable) that is in that CMakeLists file. With this way you can
control which libraries/executables will be linked with these flags, and
this is the level of control you have.
Cheers!
Angeliki
On Mon, Jul 21, 2014 at 7:05 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
The problem is that I need to add both -whole-archive and
-no-whole-archive options. And I need to control exactly where they occur
so that only my libraries occur inside the whole archive section. I'd be
happy to be proven wrong but I don't think setting CMAKE_EXE_LINKER_FLAGS
will give me that level of control.
--
Glenn
On 21 July 2014 09:57, Angeliki Chrysochou angeliki.chrysoc...@gmail.com
wrote:
Hi Glenn,
Adding linker flags exactly in target_link_libraries is not a very good
practice in my opinion. To add specific linker flags to an executable, you
can use the variable CMAKE_EXE_LINKER_FLAGS, which you can edit before
calling add_executable. You could set this variable accordingly in your
static and dynamic CMakeLists.txt to include the flags you wish in the
following way:
set(CMAKE_EXE_LINKER_FLAGS -whole-archive)
If you set this variable to include more custom linker flags which you
want to preserve across libraries, then you should set it in the following
way to preserve its old value:
set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} -whole-archive)
If you want to edit linker flags for a shared library or a module target
you can use these cmake variables (set them before add_library):
CMAKE_SHARED_LINKER_FLAGS
CMAKE_MODULE_LINKER_FLAGS
Be aware that variables have CMakeLists.txt file scope, so if you set
different values in one CMakeLists.txt then they might get overwritten or
appended (depending on the way you edit the variable).
All the best,
Angeliki
On Sat, Jul 19, 2014 at 2:39 PM, Glenn Coombs glenn.coo...@gmail.com
wrote:
Don't all shout at once :-) I'm guessing there are no easy solutions
then...
--
Glenn
On 28 June 2014 14:33, Glenn Coombs glenn.coo...@gmail.com wrote:
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various
project specific library folders which each build a static library. The
testbench folder is the one that builds both the executable and the dynamic
library. When building the dynamic library I need to use the linker
options -whole-archive and -no-whole-archive to force my static project
libraries to be included into the dynamic library. The problem is how to
insert the -whole-archive and -no-whole-archive options so that they select
the correct set of libraries. Currently in the testbench CMakeLists.txt
file I have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench ${sources} ${headers} )
target_link_libraries(csim_dll ${libs_dll} ${PTHREADS_LIBRARIES} )
target_link_libraries(testbench ${libs} ${PTHREADS_LIBRARIES} )
which produces the following link line:
/usr/bin/g++-4.7 -fPIC -m32 -m32 -m32 -fPIC -m32 -O3 -O3 -DHIDEBUG
-Wl,-Bsymbolic
-shared -Wl,-soname,libtopazhp.so
-o libtopazhp.so
CMakeFiles/csim_dll.dir/dll_main.cpp.o
CMakeFiles/csim_dll.dir/main_common.cpp.o
-lm -lrt -lm -lrt
-Wl,-whole-archive
../mvea/VLC/libVLC.a
../mvea/libmvea.a
../systemCSupport/libsystemc_support.a
../devif_slave/libDevifSlave.a
../systemC/libsystemc.a
../sim_utils/libsim_utils.a
../hwdebug/libhwDebug.a
../mtx_wrapper/libmtx_wrapper.a
../transif/libtransif_slave.a
-Wl,-no-whole-archive
-lpthread -lz
../systemC/libpthreads_dummy.a
../external_mtx/src/external_mtx-build/metag/libmetag.a
../external_mtx/src/external_mtx-build/metagcopro/libmetagcopro.a
../external_mtx/src/external_mtx-build/metac/vmetastub/libvmetastub.a
../external_mtx/src/external_mtx-build/metac/insim/libinsimfpu.a
../external_mtx/src/external_mtx-build/mtx/insim-mtxg/libinsim-mtxg.a
../external_mtx/src/external_mtx-build/mtx/libmtxc.a
-ldl -lm -lrt
Re: [CMake] How to get a list of all the static libraries that a target will link against ?
Don't all shout at once :-) I'm guessing there are no easy solutions
then...
--
Glenn
On 28 June 2014 14:33, Glenn Coombs glenn.coo...@gmail.com wrote:
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various project
specific library folders which each build a static library. The testbench
folder is the one that builds both the executable and the dynamic library.
When building the dynamic library I need to use the linker options
-whole-archive and -no-whole-archive to force my static project libraries
to be included into the dynamic library. The problem is how to insert the
-whole-archive and -no-whole-archive options so that they select the
correct set of libraries. Currently in the testbench CMakeLists.txt file I
have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench ${sources} ${headers} )
target_link_libraries(csim_dll ${libs_dll} ${PTHREADS_LIBRARIES} )
target_link_libraries(testbench ${libs} ${PTHREADS_LIBRARIES} )
which produces the following link line:
/usr/bin/g++-4.7 -fPIC -m32 -m32 -m32 -fPIC -m32 -O3 -O3 -DHIDEBUG
-Wl,-Bsymbolic
-shared -Wl,-soname,libtopazhp.so
-o libtopazhp.so
CMakeFiles/csim_dll.dir/dll_main.cpp.o
CMakeFiles/csim_dll.dir/main_common.cpp.o
-lm -lrt -lm -lrt
-Wl,-whole-archive
../mvea/VLC/libVLC.a
../mvea/libmvea.a
../systemCSupport/libsystemc_support.a
../devif_slave/libDevifSlave.a
../systemC/libsystemc.a
../sim_utils/libsim_utils.a
../hwdebug/libhwDebug.a
../mtx_wrapper/libmtx_wrapper.a
../transif/libtransif_slave.a
-Wl,-no-whole-archive
-lpthread -lz
../systemC/libpthreads_dummy.a
../external_mtx/src/external_mtx-build/metag/libmetag.a
../external_mtx/src/external_mtx-build/metagcopro/libmetagcopro.a
../external_mtx/src/external_mtx-build/metac/vmetastub/libvmetastub.a
../external_mtx/src/external_mtx-build/metac/insim/libinsimfpu.a
../external_mtx/src/external_mtx-build/mtx/insim-mtxg/libinsim-mtxg.a
../external_mtx/src/external_mtx-build/mtx/libmtxc.a
-ldl -lm -lrt -lm -lrt
The problem is that the 6 external_mtx libraries should have been included
inside the -whole-archive section. These libraries are specified in the
mtx_wrapper folder with a target_link_libraries(mtx_wrapper
${METASIM_LIBRARIES}) command. I have managed to wrap the direct library
dependencies inside the -whole-archive but I need to ensure that any
sub-dependencies are included as well (and any dependencies they might have
recursively). Any system dynamic libaries (-ldl -lm -lrt etc.) must appear
after the -no-whole-archive option otherwise the link fails. The
mtx_wrapper library can be built in two ways and only one of them will add
the extra METASIM libraries as a dependency, the other way fakes that code
internally. Adding the METASIM libraries via target_link_libraries()
inside the mtx_wrapper CMakeLists.txt correctly handles that dependency
when linking the standalone executable but is not working for linking the
dynamic library.
Is there an easy way to get cmake to handle all this ? Is there a way to
get a list of all the static libraries (libXXX.a) that will be included on
the link line for a target ?
--
Glenn
--
Powered by www.kitware.com
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Kitware offers various services to support the CMake community. For more
information on each offering, please visit:
CMake Support: http://cmake.org/cmake/help/support.html
CMake Consulting: http://cmake.org/cmake/help/consulting.html
CMake Training Courses: http://cmake.org/cmake/help/training.html
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/cmake
[CMake] How to get a list of all the static libraries that a target will link against ?
I have a project which compiles and links into both a stand alone
executable and a dynamic shared library. The library and the executable
link against the same project libraries but have different object files
containing their entry points: main.o for the executable and dll_main.o for
the library. My project heirarchy looks like this (simplified a bit for
brevity):
CMakeLists.txt
mtx_source/CMakeLists.txt
mtx_wrapper/CMakeLists.txt
testbench/CMakeLists.txt
The top level CMakeLists.txt calls add_subdirectory on the various project
specific library folders which each build a static library. The testbench
folder is the one that builds both the executable and the dynamic library.
When building the dynamic library I need to use the linker options
-whole-archive and -no-whole-archive to force my static project libraries
to be included into the dynamic library. The problem is how to insert the
-whole-archive and -no-whole-archive options so that they select the
correct set of libraries. Currently in the testbench CMakeLists.txt file I
have these lines:
set(libs
VLC
mvea
${SYSTEMC_SUPPORT_LIBRARIES}
${DEVIFSLAVE_LIBRARIES}
${SYSTEMC_LIBRARIES}
${SIM_UTILS_LIBRARIES}
${HWDEBUG_LIBRARIES}
)
if (NOT STUB_OUT_MTX)
list(APPEND libs mtx_wrapper)
endif()
set(libs_dll ${libs} transif_slave)
if (UNIX)
list(INSERT libs_dll 0 -Wl,-whole-archive)
list(APPEND libs_dll -Wl,-no-whole-archive)
endif()
add_library ( csim_dll SHARED ${sources_dll} ${headers_dll} )
add_executable( testbench ${sources} ${headers} )
target_link_libraries(csim_dll ${libs_dll} ${PTHREADS_LIBRARIES} )
target_link_libraries(testbench ${libs} ${PTHREADS_LIBRARIES} )
which produces the following link line:
/usr/bin/g++-4.7 -fPIC -m32 -m32 -m32 -fPIC -m32 -O3 -O3 -DHIDEBUG
-Wl,-Bsymbolic
-shared -Wl,-soname,libtopazhp.so
-o libtopazhp.so
CMakeFiles/csim_dll.dir/dll_main.cpp.o
CMakeFiles/csim_dll.dir/main_common.cpp.o
-lm -lrt -lm -lrt
-Wl,-whole-archive
../mvea/VLC/libVLC.a
../mvea/libmvea.a
../systemCSupport/libsystemc_support.a
../devif_slave/libDevifSlave.a
../systemC/libsystemc.a
../sim_utils/libsim_utils.a
../hwdebug/libhwDebug.a
../mtx_wrapper/libmtx_wrapper.a
../transif/libtransif_slave.a
-Wl,-no-whole-archive
-lpthread -lz
../systemC/libpthreads_dummy.a
../external_mtx/src/external_mtx-build/metag/libmetag.a
../external_mtx/src/external_mtx-build/metagcopro/libmetagcopro.a
../external_mtx/src/external_mtx-build/metac/vmetastub/libvmetastub.a
../external_mtx/src/external_mtx-build/metac/insim/libinsimfpu.a
../external_mtx/src/external_mtx-build/mtx/insim-mtxg/libinsim-mtxg.a
../external_mtx/src/external_mtx-build/mtx/libmtxc.a
-ldl -lm -lrt -lm -lrt
The problem is that the 6 external_mtx libraries should have been included
inside the -whole-archive section. These libraries are specified in the
mtx_wrapper folder with a target_link_libraries(mtx_wrapper
${METASIM_LIBRARIES}) command. I have managed to wrap the direct library
dependencies inside the -whole-archive but I need to ensure that any
sub-dependencies are included as well (and any dependencies they might have
recursively). Any system dynamic libaries (-ldl -lm -lrt etc.) must appear
after the -no-whole-archive option otherwise the link fails. The
mtx_wrapper library can be built in two ways and only one of them will add
the extra METASIM libraries as a dependency, the other way fakes that code
internally. Adding the METASIM libraries via target_link_libraries()
inside the mtx_wrapper CMakeLists.txt correctly handles that dependency
when linking the standalone executable but is not working for linking the
dynamic library.
Is there an easy way to get cmake to handle all this ? Is there a way to
get a list of all the static libraries (libXXX.a) that will be included on
the link line for a target ?
--
Glenn
--
Powered by www.kitware.com
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Kitware offers various services to support the CMake community. For more
information on each offering, please visit:
CMake Support: http://cmake.org/cmake/help/support.html
CMake Consulting: http://cmake.org/cmake/help/consulting.html
CMake Training Courses: http://cmake.org/cmake/help/training.html
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Follow this link to subscribe/unsubscribe:
http://public.kitware.com/mailman/listinfo/cmake
